my name is amith..iam a customer of airtel for last 2-3 years(i took connection when airtel launches in our area)my monthly usage is approx;1500-2000-3000 depends, and airtel named me as a ultra customer and last month i got a due of rs1000( i think approx.) because of this due the airtel executives /officers are threatning my mother and my familythrough landphone from last month onwards..(they are using the langauges as finance company persons doing to their unqualified customers)...this is my complaint....so please escape me from airtel..so for my sake what should i do sir???iam begging you???